Song Jian, Shao Qiang, Tian Ye, Chen Shan
Department of Urology, Beijing Friendship Hospital, Capital Medical Universty, Beijing, China (mainland).
Med Sci Monit. 2014 Dec 28;20:2806-10. doi: 10.12659/MSM.891180.
The aim of this study was to investigate the correlation between incidence of lower urinary tract symptoms and erectile dysfunction in men aged ≥50 years.
A cross-sectional study was performed in 1644 men aged >50 years in Beijing. The International Index of Erectile Function (IIEF)-5 and International Prostate Symptom Score were recorded for each patient. Pearson's chi-square test and Spearman correlation coefficients were used to analyze the International Prostate Symptom Scores and lower urinary tract symptoms, and their correlations with erectile dysfunction.
The incidence rates of erectile dysfunction among men with mild, moderate, and severe lower urinary tract symptoms were 85.7, 93.7, and 97.9%, respectively. Interestingly, the total IIEF-5 score significantly correlated with the total International Prostate Symptom Score (r=-0.335; P<0.01), obstructive symptoms (r=-0.276; P<0.01), and irritative symptoms (r=-0.326; P<0.01). The correlation between the severity of lower urinary tract symptoms and that of erectile dysfunction was consistently maintained (r=0.304; P<0.01). Age significantly correlated with International Prostate Symptom Score (r=0.388; P<0.01), lower urinary tract symptoms severity (r=0.457; P<0.01), total IIEF-5 score (r=-0.533; P<0.01), and erectile dysfunction severity (r=0.529; P<0.01).
The incidence of lower urinary tract symptoms and erectile dysfunction in aging men increase with age, and the severity of erectile dysfunction is positively correlated with the severity of lower urinary tract symptoms.
本研究旨在调查50岁及以上男性下尿路症状发生率与勃起功能障碍之间的相关性。
对北京1644名50岁以上男性进行了一项横断面研究。记录每位患者的国际勃起功能指数（IIEF）-5和国际前列腺症状评分。采用Pearson卡方检验和Spearman相关系数分析国际前列腺症状评分与下尿路症状及其与勃起功能障碍的相关性。
轻度、中度和重度下尿路症状男性的勃起功能障碍发生率分别为85.7%、93.7%和97.9%。有趣的是，IIEF-5总分与国际前列腺症状总分（r=-0.335；P<0.01）、梗阻性症状（r=-0.276；P<0.01）和刺激性症状（r=-0.326；P<0.01）显著相关。下尿路症状严重程度与勃起功能障碍严重程度之间的相关性持续存在（r=0.304；P<0.01）。年龄与国际前列腺症状评分（r=0.388；P<0.01）、下尿路症状严重程度（r=0.457；P<0.01）、IIEF-5总分（r=-0.533；P<0.01）和勃起功能障碍严重程度（r=0.529；P<0.01）显著相关。
老年男性下尿路症状和勃起功能障碍的发生率随年龄增加而升高，勃起功能障碍的严重程度与下尿路症状的严重程度呈正相关。
